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NCERT Class 11 Biology Chapter 4 Notes Animal Kingdom- Download PDF Notes

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NCERT Class 11 Biology Chapter 4 Notes Animal Kingdom- Download PDF Notes

Edited By Irshad Anwar | Updated on Mar 26, 2024 01:21 PM IST

Class 11 Biology chapter 4 notes will introduce you to the kingdom of Animals. Animal Kingdom Class 11 notes explore how animal kingdom is divided into categories depending on basic traits such as level of organization, habitat, and symmetry. Animal Kingdom Revision Notes from Class 11 Biology chapter 4 provide a quick overview of the Kingdom Animalia's eukaryotic, multicellular species, basis of classification and classification of animals. Every animal's distinct qualities are presented in this chapter. In Notes of Ch 4 Animal Kingdom you will learn that the creatures in the Animal Kingdom get their energy from either grazing on other animals or from vegetation. Millions of species have been recognized in the Kingdom Animalia. Download CBSE Notes for Class 11 biology, chapter 4, PDF to use offline anywhere. Students must read and understand each topic from Animal Kingdom class 11 Notes Biology in the easiest and most effective way possible with the help of NCERT Notes for Class 11.

Class 11 biology chapter 4 notes also cover all the important concepts related to diversity and taxonomic categories of this chapter, which are useful in various competitive exams. Animal Kingdom NCERT Notes for Class 11 Biology help you revise crucial concepts given in the NCERT Book in no time during the CBSE Board exam preparation. CBSE Class 11 Biology Chapter 4 notes will help you with quick revision. Animal Kingdom chapter covers all headings of NCERT. CBSE Class 11 Biology chapter 4 notes also contain important examples that have been frequently asked in the various exams. NCERT Solutions and having revision notes for Class 11 Biology Chapter 4 handy are beneficial to save you time. The NCERT Class 11 notes PDF can be downloaded through the link given below.

Related Links to Ch 4 Animal Kingdom:

NCERT Chapter 4 Class 11 Notes

Animal Kingdom

When you look around, you will notice various animals with varying structures and forms. With over a million animal species documented to date, the necessity for taxonomy becomes even more essential. The categorization also aids in the systematic placement of newly described species.

Basis of Classification

Despite changes in structure and shape, there are essential features shared by all animals in terms of cell arrangement, body symmetry, coelom type, and patterns of digestive, circulatory, or reproductive systems. These features are used as the basis of animal classification.

Levels of Organisation

Despite the fact that all members of Animalia are multicellular, they do not all have the same cell organisation pattern. Cells in sponges, for example, are grouped as loose cell aggregates indicating that they have a cellular level of organization. Among the cells, there is some division of labor (activities). The cell arrangement in coelenterates is more complicated. The cells that perform the same function are grouped together into tissues, which is referred to as the tissue level of organization.

Members of Platyhelminthes and other higher phyla exhibit a higher degree of organization, i.e., organ level, in which tissues are gathered together to form organs, each specialized for a certain function. Organs in animals such as Annelids, Arthropods, Molluscs, Echinoderms, and Chordates have become associated to form functional systems, each of which is concerned with a distinct physiological role. This arrangement is known as organ system level organization.

Symmetry

Animals can be classified based on their symmetry. Sponges are generally asymmetrical, which means that no plane that runs through the center divides them into equal halves. Radial symmetry arises when any plane passing through the body's central axis divides it into two identical halves. This is the body plan of coelenterates, ctenophores, and echinoderms. Animals with bilateral symmetry include annelids, arthropods, and others whose bodies may be divided into identical left and right halves in just one plane.

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Diploblastic and Triploblastic Organisation

Diploblastic animals, such as coelenterates, have cells arranged in two embryonic layers, an external ectoderm and an internal endoderm. The mesoglea is an undifferentiated layer that exists between the ectoderm and the endoderm. Triploblastic animals are those in which the growing embryo has a third germinal layer, mesoderm, between the ectoderm and endoderm.

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Coelom

In organism classification, the presence or absence of a cavity between the body wall and the gut wall is important. Coelom refers to the body cavity lined by mesoderm. Coelomates are animals that have coelom, such as annelids, mollusks, arthropods, echinoderms, hemichordates, and chordates. In some species, the body cavity is not lined by mesoderm, but rather, the mesoderm is present as dispersed pouches in between the ectoderm and endoderm. Such a bodily cavity is known as a pseudocoelom, and the creatures that have them are known as pseudocoelomates, such as aschelminthes. Acoelomates are animals that do not have a body cavity, such as platyhelminthes.

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Segmentation

In certain species, the body is split into segments both externally and internally, with at least some organs repeated serially. The body of an earthworm, for example, has this pattern known as metameric segmentation, and the phenomenon is known as metamerism.

Notochord

The notochord is a mesodermally derived rod-like structure that emerges on the dorsal side in some animals during embryonic development. Chordates are creatures that have a notochord, while non-chordates are animals that do not have one, such as porifera and echinoderms.

Classification of Animals

Figure below, depicts the broad categorization of Animalia based on the common fundamental features stated in the preceding sections.

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Phylum – Porifera

Sponge-like organisms are members of this phylum. They are mostly asymmetrical and live in the sea. These are primitive multicellular animals with cellular organization. Sponges have a canal system for transportation. Water enters the body wall through minute pores (ostia) into a central cavity, the spongocoel, from which it exits through the osculum.

This water transport pathway aids in food gathering, respiratory exchange, and waste removal. Choanocytes, also known as collar cells, line the spongocoel and canals. Digestion occurs intracellularly. A skeleton made of spicules or spongin fibers supports the body. Sexes are not separate (hermaphrodite), which means that the same individual produces both eggs and sperms.

Sponges reproduce asexually through fragmentation and sexually through gamete formation. Internal fertilization occurs, and development is indirect, with a larval stage that is morphologically distinct from the adult.

Sycon (Scypha), Spongilla (Freshwater Sponge), and Euspongia (Bath sponge) are a few examples.

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Phylum – Coelenterata (Cnidaria)

They are radially symmetrical aquatic, mostly marine, sessile or free-swimming animals. The name cnidaria is derived from the presence of cnidoblasts or cnidocytes on the tentacles and body. Cnidoblasts are employed for prey capture, defence, and anchoring.

Cnidarians are diploblastic and have a tissue level of organization. They have a single opening in the center of their gastro-vascular cavity and their mouth is hypostome.

Digestion occurs both extracellularly and intracellularly. Some cnidarians, such as corals, have a skeleton made of calcium carbonate. Cnidarians have two basic body forms: polyp and medusa.

The former, like Hydra, Adamsia, and others, is sessile and cylindrical, whereas the latter is umbrella-shaped and free-swimming, like Aurelia or jellyfish. Those cnidarians that exist in both forms display generational alternation (Metagenesis), which means that polyps create medusae asexually and medusae produce polyps sexually (e.g., Obelia).

Physalia (Portuguese man-of-war), Adamsia (Sea anemone), Pennatula (Sea-pen), Gorgonia (Sea-fan) and Meandrina (Brain coral) are some examples.

Phylum – Ctenophora

Ctenophores, often known as comb jellies or sea walnuts, are radially symmetrical, diploblastic animals with tissue level organization and are entirely marine. On the outside of the body are eight rows of ciliated comb plates that aid in movement. Extracellular and intracellular digestion are both involved in digestion.

Ctenophores have a lot of bioluminescence (the ability of a living creature to emit light). The sexes are not divided. Sexual reproduction is the only way to reproduce. Fertilization is done externally with indirect development.

Pleurobrachia and Ctenoplana are some examples.

Phylum – Platyhelminthes

Flatworms get their name from the fact that their bodies are flattened dorso-ventrally. These are mostly endoparasites that can be found in animals, including humans. Flatworms are animals with organ level organization that are bilaterally symmetrical, triploblastic, and acoelomate. In the parasitic forms, hooks and suckers are present. Some of them directly absorb nutrients from the host via their body surface.

Flame cells are specialized cells that aid in osmoregulation and excretion. The sexes are not distinct. Internal fertilization occurs, and development takes place through a number of larval stages.

Taenia (Tapeworm), Fasciola (Liver fluke) are some examples.

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Phylum – Aschelminthes

The aschelminthes' body is circular in cross-section, thus the name roundworms. They might be free-living, aquatic, or terrestrial, or they can be parasitic in plants and animals. The body organization of roundworms is organ-system level. With a well-developed muscular pharynx, the alimentary canal is completed. Through the excretory pores, an excretory tube removes waste from the body cavity.

Sexes are distinct (dioecious), i.e., males and females exist separately. Females are frequently longer than males. Internal fertilization occurs, and development can be direct (the young resemble the adult) or indirect.

Ascaris (Roundworm), Wuchereria (Filaria worm), Ancylostoma (Hookworm).

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Phylum – Annelida

They can be aquatic (both marine and freshwater) or terrestrial; free-living or parasitic.

They have organ-system level of body organization as well as bilateral symmetry. They are coelomate, triploblastic and metamerically segmented animals. Their body surface is clearly divided into segments or metameres, giving rise to the phylum name Annelida (Latin, annulus: little ring).

They have both longitudinal and circular muscles that aid in locomotion.

Aquatic annelids, such as Nereis, have lateral appendages called parapodia that aid in swimming. There is a closed circulatory system set up. Nephridia (also known as nephridium) aids in osmoregulation and excretion.

The neural system is made up of paired ganglia (sing. ganglion) that are linked by lateral nerves to a double ventral nerve cord. Earthworms and leeches are monoecious, whereas Nereis, an aquatic form, is dioecious. Reproduction is a sexual process.

Nereis, Pheretima (Earthworm) and Hirudinaria (Blood sucking leech) are some examples.

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Phylum arthropoda also includes Vectors such as Anopheles, Culex and Aedes (Mosquitoes)

Gregarious pests such as Locusta (Locust) and Living fossils like Limulus (King crab) are included in arthropoda.

Phylum – Mollusca

This is the second most populous animal phylum. Molluscs are either terrestrial or aquatic (marine or freshwater) organisms with organ-system-level organization. They are triploblastic, coelomate animals with bilateral symmetry.

The body is unsegmented and covered by a calcareous shell, with a distinct head, muscular foot, and visceral hump. A soft and spongy layer of skin creates a mantle over the visceral hump.

The mantle cavity, which contains feather-like gills, is located between the hump and the mantle. They have the ability to breathe and expel waste.

Sensory tentacles can be found in the anterior head region. The radula is a file-like rasping organ found in the mouth that is used for feeding.

Pila (Apple snail), Pinctada (Pearl oyster), Sepia (Cuttlefish), Loligo (Squid), Octopus (Devil fish), Aplysia (Sea hare), Dentalium (Tusk shell) and Chaetopleura (Chiton).

Phylum – Echinodermata

The name Echinodermata comes from the fact that these animals have an endoskeleton made up of calcareous ossicles. All are marine and organized at the organ-system level.

The name Echinodermata comes from the fact that these animals have an endoskeleton made up of calcareous ossicles. All are marine and organized at the organ-system level.

Adult echinoderms are radially symmetrical, whereas larval echinoderms are bilaterally symmetrical. They are coelomate and triploblastic animals.

With the mouth on the lower (ventral) side and the anus on the upper (dorsal) side, the digestive system is complete.

The presence of a water vascular system in echinoderms aids in locomotion, food capture and transport, and respiration. An excretory system is not present.

Sexes are distinct. Mode of reproduction is sexual. Fertilization is usually done externally.

Asterias (Star fish), Echinus (Sea urchin), Antedon (Sea lily), Cucumaria (Sea cucumber) and Ophiura (Brittle star).

Phylum – Hemichordata

Hemichordates have a basic structure in the collar region termed the stomochord, which is analogous to the notochord.

This phylum is made up of a tiny group of worm-like marine organisms that are organized on an organ-system level. They are bilaterally symmetrical, triploblastic, and coelomate creatures. The body is cylindrical and consists of an anterior proboscis, a collar, and a lengthy trunk.

The circulatory system is of the open kind. The gills are responsible for respiration. The excretory organ is the proboscis gland.

Sexes are distinct. The mode of fertilization is external. Development occurs in an indirect manner.

Balanoglossus and Saccoglossus are examples of hemichordates.

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Phylum – Chordata

A notochord, a dorsal hollow nerve cord, and paired pharyngeal gill slits distinguish Chordata animals. These are bilaterally symmetrical, triploblastic, and coelomate organ-system cells.They have a postanal tail and a closed circulatory system.

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Classification of Phylum Chordata

Urochordata or Tunicata, Cephalochordata, and Vertebrata are the three subphyla of the phylum Chordata. Both the subphylums Urochordata and Cephalochordata are marine and are frequently referred to as protochordate.

The notochord is only present in the larval tail of Urochordata, whereas it extends from the head to the tail region in Cephalochordata and is present throughout their lives.

During the embryonic period, members of the subphylum Vertebrata have a notochord. In adults, the notochord is replaced in adults by a cartilaginous or bony vertebral column. As a result, all vertebrates are chordates, but not all chordates are vertebrates.

Vertebrates contain a two-, three-, or four-chambered ventral muscular heart, kidneys for excretion and osmoregulation and paired appendages that can be fins or limbs, in addition to the fundamental chordate traits.

Classification of Subphylum Vertebrata

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Class – Cyclostomata

Members of the class Cyclostomata who are still alive are parasitic ectoparasites on some fish. They have an elongated body with 6-15 pairs of gill slits that allow them to breathe.

Cyclostomes have a sucking mouth and no jaws. Scales are missing from their bodies, and their fins are paired.

The cranium and vertebral column are made up of cartilage. The circulation system is closed.

Cyclostomes are marine creatures that migrate to freshwater for spawning. They die a few days after spawning. After metamorphosis, their larvae return to the ocean.

Examples are Petromyzon (Lamprey) and Myxine (Hagfish).

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Class – Chondrichthyes

They are streamlined marine animals with a cartilaginous endoskeleton. The mouth is located ventral.

The notochord remains constant throughout life. Gill slits are distinct and lack an operculum (gill cover). The skin is tough and covered in small placoid scales. Teeth are modified placoid scales that are oriented backwards. Their jaws are extremely powerful.

These creatures are predators. Because they lack an air bladder, they must swim constantly to avoid sinking.

The heart is divided into two chambers (one auricle and one ventricle). They are cold blooded creatures (poikilotherms), i.e. they don’t have the ability to control their body temperature.

Sexes are distinct. Males have claspers on their pelvic fins. Their mode of fertilization is internal and most of them are viviparous.

Examples are Scoliodon (Dog fish), Pristis (Saw fish), Carcharodon (Great white shark), Trygon (Stingray).

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Class – Osteichthyes

It includes both freshwater and marine fishes with a bony endoskeleton. Their physique is streamlined. The mouth is primarily terminal (Figure 4.20). They have four pairs of gills on each side, which are covered by an operculum.

Cycloid/ctenoid scales cover the skin. There is an air bladder present that regulates buoyancy. The heart is divided into two chambers (one auricle and one ventricle).

They are cold-blooded creatures. The sexes are distinct. Fertilization is typically done externally. They are generally oviparous and have direct development.

Marine examples are Exocoetus (Flying fish), Hippocampus (Sea horse).

Freshwater examples include Labeo (Rohu), Catla (Katla), Clarias (Magur).

Aquarium examples are Betta (Fighting fish), Pterophyllum (Angel fish).


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Class – Amphibians

Amphibians can live in both aquatic and terrestrial environments. The majority of them have 2 pairs of limbs. The body is divided into two parts: the head and the trunk. Some creatures may have a tail. The amphibian's skin is wet (without scales). Eyelids are present in the eyes. A tympanum is a representation of the ear.

The alimentary canal, urinary tract, and reproductive tract all connect to a common chamber called the cloaca, which opens to the outside. Respiration is done via the gills, lungs, and skin.

The heart is made up of three chambers (two auricles and one ventricle). These are cold-blooded creatures. The sexes are distinct. Fertilization is done externally. They are oviparous and develop in an indirect manner.

Examples are Bufo (Toad), Rana (Frog), Hyla (Tree frog), Salamandra (Salamander), Ichthyophis (Limbless amphibia).

Class – Reptilia

They are usually terrestrial animals with dry and cornified skin, epidermal scales, or scutes covering their bodies. They have no external ear holes.

A tympanum is a representation of the ear. When limbs are present, they are in two pairs.

Heart is generally three-chambered but crocodiles have a four-chambered heart. Poikilotherms are reptiles. Lizards and snakes shed their scales in the form of skin cast.

The sexes are distinct. Internal fertilization occurs. They are oviparous and develop in a direct manner.

Examples are Chelone (Turtle), Testudo (Tortoise), Chameleon (Tree lizard), Calotes (Garden lizard), Crocodilus (Crocodile), Alligator (Alligator). Hemidactylus (Wall lizard).

Poisonous snakes such as Naja (Cobra), Bangarus (Krait), Vipera (Viper) are also included in reptiles.

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Class – Aves

The presence of feathers distinguishes Aves (birds) and most of them can fly, with the exception of flightless birds (e.g., Ostrich). They have a beak. The forelimbs have been transformed into wings. Scales cover the hind limbs, which are modified for walking, swimming, and grasping tree branches.

Except for an oil gland at the base of the tail, the skin is dry and gland-free.

The long bones are hollow with air cavities (pneumatic) and the endoskeleton is entirely ossified (bony). The crop and gizzard are extra chambers in the digestive tract of birds. The heart has four chambers.

They are warm-blooded (homoiothermous) animals, which means they can keep their body temperature constant. The lungs are responsible for respiration. Respiration is supplemented by air sacs connected to the lungs.

The sexes are distinct. Internal fertilization occurs. They are oviparous and development is in a direct manner.

Examples are Corvus (Crow), Columba (Pigeon), Psittacula (Parrot), Struthio (Ostrich), Pavo (Peacock), Aptenodytes (Penguin), Neophron (Vulture).

Class – Mammalia

They can be found in a wide range of environments, including arctic ice caps, deserts, mountains, woods, grasslands, and subterranean caves. Some of them have developed the ability to fly or live inside water. The existence of milk-producing glands (mammary glands) that nourish the young is the most distinctive mammalian feature. They have two pairs of limbs that allow them to walk, run, climb, burrow, swim, or fly.

Mammalian skin is remarkable in that it has hair. There are external ears called pinnae. The jaw has many types of teeth. The heart has four chambers.

These creatures are homoiothermic. The lungs are responsible for respiration. Sexes are separate and fertilization is done internally.

With a few exceptions, they are viviparous, and the manner of development is direct.

Examples are Oviparous-Ornithorhynchus (Platypus); Viviparous - Macropus (Kangaroo), Pteropus (Flying fox), Camelus (Camel), Macaca (Monkey), Rattus (Rat), Canis (Dog), Felis (Cat), Elephas (Elephant), Equus (Horse), Delphinus (Common dolphin), Balaenoptera (Blue whale), Panthera tigris (Tiger), Panthera leo (Lion).

Chapter wise NCERT Class 11 Notes Biology

Following are the links to all the chapters notes of class 11 biology:

Significance of Notes for Class 11 Biology Chapter 4

Animal Kingdom class 11th notes will assist you in revising the chapter and gaining an understanding of the main subjects addressed. These Notes for Class 11 Biology Chapter 4 are also beneficial for covering the core concepts of the CBSE Biology Syllabus in Class 11 as well as for competitive exams such as AIPMT, AIIMS, NEET, and other similar exams. The Class 11 Biology chapter 4 notes pdf download can be utilised for offline preparation.

Subject Wise NCERT Exemplar Solutions

Subject Wise NCERT Solutions

Frequently Asked Question (FAQs)

1. What are the key points covered in the notes for Class 11 Biology chapter 4 notes?

The following are some of the most important subjects taught in Class 11 Animal Kingdom notes:

  • Basis of classification

  • Classification of animals.

All Important categories are mentioned under animal classification, such as phylum porifera Coelenterata (Cnidaria), Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata, Chordata, and so on.

In these class 11 biology chapter 4 notes, every important topic from the animal kingdom has been thoroughly discussed. The notes are also ideal for review.

2. How will CBSE Class 11 Biology chapter 4 notes benefit students?

Subject specialists have created Class 11 Biology chapter 4 notes that will give you further information on the subject. You can reinforce your foundation with these Class 11 chapter 4 notes. Every facet of Animal Kingdom is covered in this segment.

3. Make a list of the many factors or criteria used to classify animals.

According to NCERT Class 11 Biology chapter 4 notes,

  • Levels of organization

  • Symmetry

  • Body cavity

  • Segmentation

  • Digestive system 

  • Circulatory system 

  • Respiratory system

are the factors used to classify animals

4. What is meant by radial symmetry? Give some examples of species that have this trait.

NCERT notes for Class 11 Biology chapter 4 define it as follows

Radial symmetry arises when any plane passing through the body's central axis divides it into two identical halves. This is the body plan of coelenterates, ctenophores and echinoderms.

5. Distinguish between chordates and Non chordates.

 Class 11 Biology chapter 4 notes show the difference between chordates and Non chordates as follows.

Chordates

Non-chordates

Notochord is present.

Notochord is absent.

Central nervous system is hollow, single and dorsal.

Central nervous system is solid, double and ventral.

Pharynx perforated by gill slits.

Gills are not present.

Heart is ventral.

Heart, if present is dorsal.

A post-anal part(tail) is present.

A post-anal part(tail) is absent.

6. State the characteristic features of Phylum Annelida.

Class 11 Biology chapter 4 notes describe the characteristic features of Phylum Annelida as follows.

  • They can be aquatic (both marine and freshwater) or terrestrial; free-living or parasitic.
  • They have organ-system level of body organization as well as bilateral symmetry. They are coelomate, triploblastic and metamerically segmented animals. Their body surface is clearly divided into segments or metameres, giving rise to the phylum name Annelida (Latin, annulus: little ring).
  • They have both longitudinal and circular muscles that aid in locomotion.
  • Aquatic annelids, such as Nereis, have lateral appendages called parapodia that aid in swimming. There is a closed circulatory system set up. Nephridia (also known as nephridium) aids in osmoregulation and excretion. 
  • The neural system is made up of paired ganglia (sing. ganglion) that are linked by lateral nerves to a double ventral nerve cord. Reproduction is a sexual process.
  • Nereis, Pheretima (Earthworm) and Hirudinaria (Blood sucking leech) are some examples.
7. According to Class 11 chapter 4 notes, what are mammary glands?

The existence of milk producing glands that nourish the young is the most distinctive mammalian feature of class mammalia. Such milk producing glands are called mammary glands. They are also present in males but are non-functional.

8. What are coelomates?

Class 11 Chapter 4 notes describe coelomates as follows

Coelom refers to the body cavity lined by mesoderm. Coelomates are animals that have coelom, such as annelids, mollusks, arthropods, echinoderms, hemichordates, and chordates. In some species, the body cavity is not lined by mesoderm, but rather, the mesoderm is present as dispersed pouches in between the ectoderm and endoderm. Such a bodily cavity is known as a pseudocoelom, and the creatures that have them are known as pseudocoelomates, such as aschelminthes. Acoelomates are animals that do not have a body cavity, such as platyhelminthes.

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A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

Option 2)

0.16\; J

Option 3)

1.00\; J

Option 4)

0.67\; J

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

Option 2)

 6.45×10−3 kg

Option 3)

 9.89×10−3 kg

Option 4)

12.89×10−3 kg

 

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

Option 2)

200 \, \, J - 500 \, \, J

Option 3)

2\times 10^{5}J-3\times 10^{5}J

Option 4)

20,000 \, \, J - 50,000 \, \, J

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)

K/2\,

Option 2)

\; K\;

Option 3)

zero\;

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K/4

In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)

0.02

Option 2)

3.125 × 10-2

Option 3)

1.25 × 10-2

Option 4)

2.5 × 10-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

Option 2)

increase two fold

Option 3)

remain unchanged

Option 4)

be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1)

Molality

Option 2)

Weight fraction of solute

Option 3)

Fraction of solute present in water

Option 4)

Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

Option 2)

6.023 × 1022

Option 3)

half that in 8 g He

Option 4)

558.5 × 6.023 × 1023

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

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less than 3

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more than 3 but less than 6

Option 3)

more than 6 but less than 9

Option 4)

more than 9

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Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

3 Jobs Available
Geothermal Engineer

Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

3 Jobs Available
Database Architect

If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy, IIT Kharagpur, JMI New Delhi

3 Jobs Available
Remote Sensing Technician

Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive. 

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

3 Jobs Available
Budget Analyst

Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.

4 Jobs Available
Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

3 Jobs Available
Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

3 Jobs Available
Finance Executive
3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

3 Jobs Available
Stock Analyst

Individuals who opt for a career as a stock analyst examine the company's investments makes decisions and keep track of financial securities. The nature of such investments will differ from one business to the next. Individuals in the stock analyst career use data mining to forecast a company's profits and revenues, advise clients on whether to buy or sell, participate in seminars, and discussing financial matters with executives and evaluate annual reports.

2 Jobs Available
Researcher

A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.

2 Jobs Available
Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
Transportation Planner

A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

3 Jobs Available
Environmental Engineer

Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems. 

2 Jobs Available
Safety Manager

A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.

2 Jobs Available
Conservation Architect

A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.

2 Jobs Available
Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

2 Jobs Available
Highway Engineer

Highway Engineer Job Description: A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.

2 Jobs Available
Field Surveyor

Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials. 

2 Jobs Available
Orthotist and Prosthetist

Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

6 Jobs Available
Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

5 Jobs Available
Veterinary Doctor
5 Jobs Available
Speech Therapist
4 Jobs Available
Gynaecologist

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth. 

4 Jobs Available
Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

3 Jobs Available
Oncologist

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

3 Jobs Available
Anatomist

Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.

2 Jobs Available
Actor

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs. 

4 Jobs Available
Acrobat

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

3 Jobs Available
Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

3 Jobs Available
Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

3 Jobs Available
Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

2 Jobs Available
Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

2 Jobs Available
Photographer

Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.

2 Jobs Available
Producer

An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story. 

They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.

2 Jobs Available
Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism, Advertising, Marketing Management. Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook. 

5 Jobs Available
Vlogger

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion. 

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article. 

3 Jobs Available
Publisher

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

3 Jobs Available
Journalist

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

3 Jobs Available
Editor

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

3 Jobs Available
Reporter

Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication), B.M.M. (Bachelor of Mass Media), or MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.  

2 Jobs Available
Corporate Executive

Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.

2 Jobs Available
Multimedia Specialist

A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications. 

2 Jobs Available
Welding Engineer

Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues. 

5 Jobs Available
QA Manager
4 Jobs Available
Quality Controller

A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product. 

A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.

3 Jobs Available
Production Manager
3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
QA Lead

A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans. 

2 Jobs Available
Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software. 

2 Jobs Available
Process Development Engineer

The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.

2 Jobs Available
QA Manager
4 Jobs Available
AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party. 

4 Jobs Available
Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems. 

4 Jobs Available
Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

3 Jobs Available
Product Manager

A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.  

3 Jobs Available
Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack 

3 Jobs Available
ITSM Manager
3 Jobs Available
Automation Test Engineer

An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process. 

2 Jobs Available
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